He is a Clinical Associate Professor at SPPH, teaching medical students, supervising MHA students, serving as an examiner for faculty, and for the Medical Council of Canada, providing consultations to many BC Premiers and non-profit community organizations.

Dr. Fung is a Fellow of the Royal Society of Medicine, United Kingdom. He initiated an academic exchange program between the Faculties of Medicine of UBC and the Sun Yet-Sen University, China. He is an Honorary Fellow of the Canadian Academy of Health Sciences.

In research, Dr. Fung is the Founder and served as president of the Canadian Apotosis Research Foundation. During the global SARS crisis, he served as an international consultant in the project development of a vaccine against the SARS virus. His current population health research interest is the clinical treatment of childhood autism symptoms using traditional Chinese Medicine scalp acupuncture.